What term describes the movement of an entire mass of material along a slip plane?

The term that describes the movement of an entire mass of material along a slip plane is "slides." This process typically involves a cohesive mass of rock, soil, or debris that moves downhill due to gravity, often along a distinct surface or slip plane. As the mass moves, it may remain relatively intact, which distinguishes it from other forms of mass wasting such as flows or falls.

Slides can encompass a variety of specific types, such as rotational slides (which have a curved slip surface) and translational slides (that move along a planar surface). The controlled nature of this movement along a slip plane is key to the definition of a slide, making it stand out from other categories of mass movement that might involve more chaotic or fluid-like behaviors.